Schalun Castle, also known colloquially as Wildschloss, was constructed probably during the second half of the 12th century or around the turn of the 12th century. The first written record about the castle comes from 1237. In it, it was also first referred to by name, as 'Schalun'. Archeological digs made in recent decades have revealed only small amounts of artefacts from the medieval and early modern period, suggesting that the castle might have been cleared and burned down at a later point in its history. In the 18th century, the castle came into the possession of the then Prince Regnant of Liechtenstein. The ownership of the castle ruin was handed over to the Municipality of Vaduz in 1933. Today, the best preserved parts of the castle are its grand hall and the remaining section of its keep.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.